Oregon Scientific RMR382-B Wireless Indoor/Outdoor Thermometer with Atomic Clock, Black

So far the device has entirely lived up to expectations. Atomic Clock feature works fine and the range and accuracy on the remote sensor seems fair enough -there is often about a 1-2 degree difference between the sensor and main unit if set right next to each other, but this is minor for the uses we get out of it (a quick look at outside temps during the winter).

The only issue we ran into that was "problematic" was the Ice Alarm feature. This feature sets off the devices alarm anytime the temperature drops between 32 and 27 degrees or so to alert you to possible icy conditions. The problem is that in cold climates the temperature hovers in that range all winter long...so the alarm goes off continually every 40 seconds or so.

We just happened upon a solution that has worked perfectly. The ice alarm only works on Channel 1. So, if you set the outside sensor to Channel 2 or 3 the ice alarm is disabled and is no longer triggered. Obviously, they should have an ability to shut it off, but this is it...and even this isn't listed in the instructions.

Product does what it is supposed to do. The readout is large and easy to see. Only complaint is there should be a way to turn off the freeze warning audible alarm which is irritating. It goes off continually. The only way to silence it is to set the outside unit on a different channel than channel 1. Perhaps Oregon should consider doing away with this feature.

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I was dissapointed by the inaccurate temperature readings on this wireless Oregon Scientific item (RMR382A-BK). I placed the external sensor right next to the inside main base unit (with its own sensor) and the temperature was measured as 77.5 degrees on the external sensor, and 74.5 degrees on the base unit (the inside part). The actual room temperature was 73 degrees. This is hardly what I'd decribe as accurate measurements and certainly isn't what I expected.

I called Oregon Scientific and their customer service person said, "They are built with an expected five degree +/variation." I replied that is a huge range for a digital thermometer and that I can get that kind of "accuracy" from a spring or mercury style thermometer. I also found it interesting that nowhere on the box or in the instructions is this five degree +/range of accuracy mentioned.

The customer service rep didn't seem to really care about my issue, and keep trying to act like this is "OK" and should be "acceptable" and inferred that if I wanted better accuracy I should purchase one of their more expensive models.

We'll, it's not OK to make crappy products, especially with the Oregon Scientific name on them. The RMR328A will be going back to the store tomorrow and I'll be looking for another manufacturer that hopefully has a little tighter standard for their thermometer's accuracy.

The Oregon Scientific name used to stand for quality. It seems that this is no longer the case. At least on this model anyway. And the customer service response that "this is somehow OK and acceptable" is beyond me.

Oh, and by the way, I noticed that this thermometer (as well as many of their other wireless models) is manufactured in China. I wonder if this is part of the problem?

Jim Bailey

Lake Oswego, OR

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My Son-in-law bought this to use in Alaska. The Atomic clock works within 4000 miles of Ft Collins, Co, which doesn't include Alaska. So he set the time manually and it worked for a few weeks, then picked up WWV just long enough to set the clock... to Pacific time. Turns out the clock only has 4 time zones, and doesn't include HI or AK. Customer service couldn't help. Each time he reset it to AK time it worked for awhile then reset to Pacfic time. The wrong time is worse than no time at all. So he gave it to me. I live in NM.

I had the same problem as another reviewer.... freeze alarm constantly waking me up at night. Instructions and customer service no help. Solution was to set remote to channel 2 which has no freeze alarm.

The folks at Oregon Scientific must be related to the Word programmers at Microsoft. They try to come up with overly helpful features which only annoy. And they are no help trying to correct.

Once we relocated this device to New Mexico and figured how to get around the annoying freeze alarm, it works fine. Batteries last MUCH longer than in other brands I have used. And it seems very accurate, gauging by the ice on the dog's dish. UPDATE have been using it almost 2 years still going strong on the initial lithium battery in the transmitter.

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First, the ONLY reason to buy this thermometer (as opposed to another thermometer) is because of the Freeze alarm feature.

So lets talk about that ...

The freeze alarm goes off at 32F +/5 degrees. So what really happens. As the temp drops the freeze alarm goes off at 37F. You press the alarm silence button. So far so good.

Now the temp drops to 27F ... the alarm goes off again. Not good, but you silence it. Temp drops some more than warms up to 27F. Alarm goes off again. Continues to warm up through 37F. Alarm goes off AGAIN. Four alarms for ONE freeze event. By now you've had a horrible night sleep.

But wait there's more. Let's say nature isn't perfectly linear and the temp drops to 36.9F (Alarm goes off). Then ten minutes later the temp is 37.1F (Alarm goes off again). Nature continues to vary and the alarm goes off every FEW minutes until you want to throw the thing in the trash.

But I NEED a freeze alarm. And there is NO other inexpensive alarm that I can find in the internet.

So, I drilled a hole in the side and put in a switch from Radio Shack that disconnects the ALARM buzzer. Now when the alarm goes off I ignore the 'alarm' silence button and flip my extra switch OFF and no more alarm. I reset the switch the next time I need the alarm.

This device is a great idea but a horrible application.